private List <DetectedConstructorArgument> GetConstructorArguments(
ConstructorArgumentExtractor extractor,
INamedTypeSymbol fullBindToTypeName
)
{
if (extractor is null)
{
throw new ArgumentNullException(nameof(extractor));
}
if (fullBindToTypeName is null)
{
throw new ArgumentNullException(nameof(fullBindToTypeName));
}
var constructorArguments = extractor.GetConstructorArguments();
var chosenConstructor = ChooseConstructor(
fullBindToTypeName,
constructorArguments
);
foreach (var cParameter in chosenConstructor.Parameters)
{
var cParameterName = cParameter.Name;
var cParameterType = cParameter.Type;
var found = constructorArguments.FirstOrDefault(ca => ca.Name == cParameterName);
if (found is null)
{
constructorArguments.Add(
new DetectedConstructorArgument(
cParameterName,
cParameterType,
cParameter.HasExplicitDefaultValue
)
);
}
}
return(constructorArguments);
}
private void ProcessCustom(
ExpressionStatementSyntax expressionNode,
GenericNameSyntax bindGenericNode,
ArgumentSyntax?whenArgumentClause
)
{
var genericNodes = expressionNode
.DescendantNodes()
.OfType <GenericNameSyntax>()
.ToList();
var toGenericNode = genericNodes[1];
var toMethodName = toGenericNode.Identifier.Text;
if (toMethodName.NotIn(nameof(IToOrConstantBinding.To), nameof(IToOrConstantBinding.ToFactory)))
{
throw new DpdtException(DpdtExceptionTypeEnum.InternalError, "Cannot find To clause for custom binding");
}
var factoryPayloadSemantic = GetFactoryPayloadIfExists(
toGenericNode
);
var bindFromTypeSemantics = GetBindFromTypes(
bindGenericNode
);
var bindToSyntax = toGenericNode.TypeArgumentList.Arguments.First();
var bindToTypeSemantic = _semanticModel.GetTypeInfo(bindToSyntax).Type;
if (bindToTypeSemantic == null)
{
throw new DpdtException(
DpdtExceptionTypeEnum.InternalError,
$"Unknown problem to access {nameof(bindToTypeSemantic)}"
);
}
CheckForFromAndToTypes(
bindFromTypeSemantics,
bindToTypeSemantic,
!(factoryPayloadSemantic is null)
);
var fullBindToTypeName = _typeInfoProvider.GetTypeByMetadataName(bindToTypeSemantic.ToDisplayString());
if (fullBindToTypeName == null)
{
throw new DpdtException(
DpdtExceptionTypeEnum.InternalError,
$"Unknown problem to access type for {bindToTypeSemantic.ToDisplayString()}"
);
}
var caExtractor = new ConstructorArgumentExtractor(
_typeInfoProvider,
_semanticModel
);
caExtractor.Visit(expressionNode);
var constructorArguments = GetConstructorArguments(
caExtractor,
fullBindToTypeName
);
var bindingContainer = new BindingContainerWithInstance(
bindFromTypeSemantics,
bindToTypeSemantic,
constructorArguments,
BindScopeEnum.Custom,
whenArgumentClause,
factoryPayloadSemantic
);
_bindingContainers.Add(bindingContainer);
}